DS1804-010+

Digital Potentiometers Overview

The DS1804-010+ is a single nonvolatile digital potentiometer featuring 100 tap positions and a nominal resistance of 10 kΩ. It operates within a supply voltage range of +2.7V to +5.5V, consuming a maximum supply current of 400 µA. The device utilizes an Up/Down, Increment-Controlled interface consisting of CS, INC, and U/D pins to manipulate the wiper position via a 7-bit up/down counter. Wiper data is stored in EEPROM memory on demand, retaining the setting across power cycles. It supports linear tapering and functions reliably within an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Single-channel nonvolatile digital potentiometer with 100 discrete tap points
• On-demand wiper storage to EEPROM memory for power-cycle retention
• Three-terminal increment/decrement control interface (CS, INC, U/D)
• Operates from 3V or 5V supplies with low standby current

Digital Potentiometers Applications

• Low-cost trimming applications requiring CPU or manual control
• Portable electronic devices due to low power consumption
• Industrial systems requiring adjustable resistance settings

Digital Potentiometers Procurement Notes

Verify the specific package variant required, as the base model number corresponds to multiple physical packages including 8-pin DIP, SO, and µSOP. Confirm RoHS compliance status based on the '+' suffix. Ensure the design accounts for the 50,000 write endurance limit of the internal EEPROM before wear-out occurs.

Digital Potentiometers Selection Notes

Select the DS1804-010+ specifically for 10 kΩ resistance requirements; other variants exist for 50 kΩ and 100 kΩ. Consider the available packaging options (DIP, SO, µSOP) when designing the PCB footprint. Verify that the application logic correctly handles the 50 ms power-up time before the control port becomes active.

Digital Potentiometers Part Context

The DS1804 series belongs to Maxim Integrated's family of nonvolatile trimmer potentiometers. This component serves as a solid-state replacement for mechanical potentiometers in calibration and adjustment circuits. The '010' designation indicates the 10 kΩ resistance grade within this product line.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements include DS1804Z-010+ (SOIC package) and DS1804U-010+ (µSOP package). These variants share identical electrical characteristics and functionality but differ only in physical package dimensions.